What Aspects Must Testing Strategy Comprise?

Some people may call in question the necessity of spending precious time on deliberating about things that seems to be or will become obvious in process. But a professional software testing company always pays due attention to creation of testing strategy.

Each testing process is especial and demands unique approach, and its own strategy. But the process of testing strategy elaborating should be streamlined. In this case testers will always know on what aspects to focus attention developing a testing strategy.